S4HANA Sales Order API(A2X) taking longer processing time with huge number of line item

Hi Experts,

We person Integration betwixt BTP-IS & S4 wherever we are creating Sales Orders successful S4 utilizing the API_SALES_ORDER_SRV API .

S4HANA Sales Order API (A2X) is taking longer processing clip to make Sales Order with immense fig of enactment items.

We person done batch of customizations to the api astatine abap extremity owed to lawsuit requirements.

How tin we hole this occupation arsenic it is taking 2 mins to make bid with 100 enactment items.

SAP Integration Suite SAP BTP, ABAP environment SAP S/4HANA Cloud ABAP Environment 

test automation instrumentality for SAP S/4HANA Cloud 

SAP S/4HANA API Management API